Will shared proxies work for me?

I have Scrapebox, GSA-SER, and Ultimate Demon and some others but the only thing I want proxies for is to check my SERPs using Traffic Travis (TT). TT will also let me look at all the backlinks pointing to a given URL from my site. That is very helpful if you are paying for link building services.
Can I get by with shared proxies?
I don't use any of the tools for link building anymore. I do it all from my own IP.

What is the cheapest way to do this? To check the SERPs and the backlinks to all of my URLs.

Thanks for considering my question

Added:
I have used SB to scrape proxies but they are all from different places in the world and I need USA proxied to know my SERPs here.

If you are lucky, shared proxies will work. I would invest in private proxies to check SERPs.

use proranktracker.com to check the SERPs, with free account you can track up to 50 keywords. Ahrefs is the best for checking links, but not free. There are free backlink checkers but they're not good

Share proxies are probably fine, I don't even use proxies to SERP check, I just set a 55 second delay and call it a day and let it run while I sleep, works like a charm.

But if you get shared proxies that are not being used with the engines, then its fine. Its just a matter of if someone else sharing the proxies scrapes engines and gets the ips banned. Buyproxies.org is really great about matching you up with people that aren't using engines, you just have to tell them what your using it for when you checkout. I have 200 shared proxies with them and have no issues scraping.

I have an account with serpexplorer [dot] com to check SERP it's not free but cheap and well done to track my keywords automatically and I had nothing to do after adding the keyword list to the online account and now I can see how my SERP positions move up and down.

Get semi dedicated private proxies that share the same geographic location as your target audience.